Encoder, lens apparatus, and camera capable of detecting position of object
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United States of America Patent
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Sep 1, 2015
Grant Date -
Feb 13, 2014
app pub date -
Aug 6, 2013
filing date -
Aug 8, 2012
priority date (Note) -
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Abstract
An encoder includes a base, a cylinder rotatable in a circumferential direction with respect to the base, at least three supporting portions rotatably supporting the cylinder with respect to the base, a connecting portion provided on the cylinder and rotatable within a first range between two supporting portions of the at least three supporting portions, a scale attached to the cylinder, and a detector configured to detect a position of the cylinder with respect to the base by using the scale, and the detector is arranged within a second range different from the first range.
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